North Atlantic Temperature Change Across the Eocene‐Oligocene Transition From Clumped Isotopes
Ilja J. Kocken,
Peter D. Nooteboom,
Kasper van der Veen
et al.
Abstract:The Eocene‐Oligocene transition (EOT) (∼34 Ma) is marked by the rapid development of a semi‐permanent Antarctic ice‐sheet, as indicated by ice‐rafted debris and a 1–1.5‰ increase in deep sea δ18O. Proxy reconstructions indicate a drop in atmospheric CO2 and global cooling. How these changes affected surface ocean temperatures in the North Atlantic and ocean water stratification remains poorly constrained. In this study, we apply clumped‐isotope thermometry to well‐preserved planktonic foraminifera, that are as… Show more
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